Using your cameraphone's digital zoom is pretty much asking for terrible snapshots, but using a magnifying glass (even one on a swiss army knife, if you've got one) will improve your cameraphone's close-up photos.
Instead of resorting to digital zoom, if you've got a handy swiss army knife that's equipped with a magnifying glass try this quick Instructables camera hack. Put the magnifying glass in front of the camera lens, and take your picture. It will amplify your close-up photos without resorting to digital zoom, which will only make your photos look grainy.
For something a little more dedicated, try this slightly more complicated DIY cameraphone and lighting lens to snazz up your photos. Got a neat cameraphone trick to make 'em a lot better? Let us know below.